In this study, the seismic response of the anchorage used for switchboard cabinets at a power plant was presented based on the results of an experiment and numerical simulations. In the experimental study, shaking table tests were performed to investigate the overall structural behavior of switchboard cabinets. The finite element modeling was conducted using the ABAQUS program, and in order to validate the proposed finite element model, the natural frequency, stress, and displacement were compared with the experimental results. A slight difference was found in the results due to the problem cup-like deformation at the anchorage of the bottom, but it showed reasonable agreement when considering the results for all behaviors. Using the proven model, nonlinear dynamic analysis was performed using three types of a period waves. The maximum stress on the anchorage occurred when a long-period wave was applied, and the horizontal maximum displacement of the cabinet was approximately 10 times greater than when an ultra-short-period wave was applied. It is expected that the flexibility of the cabinet stiffness resulted in more structural weakness, especially under a long-period wave, and that is recommended to focus on displacement rather than stress when establishing seismic design guidelines for switchboard cabinets.

在这项研究中，基于实验和数值模拟的结果，提出了用于电厂配电盘柜的锚固的地震响应。在实验研究中，进行了振动台测试以调查配电盘柜的整体结构性能。使用ABAQUS程序进行了有限元建模，为了验证所提出的有限元模型，将固有频率，应力和位移与实验结果进行了比较。由于底部锚固处的杯状变形问题，结果之间存在细微差异，但在考虑所有行为的结果时显示出合理的一致性。使用经过验证的模型，使用三种类型的周期波进行了非线性动力学分析。当施加长周期波时，锚固上会产生最大应力，机柜的水平最大位移约为施加超短周期波时的10倍。可以预期，柜体刚度的灵活性会导致更多的结构缺陷，尤其是在长周期的波浪作用下，建议在建立配电盘柜体的抗震设计准则时，重点放在位移而不是应力上。